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<P><img id ="left" src = "images/comet-mission.jpg" alt="Comet Mission" title="Comet Mission"/>
There are a few countries that are actively conducting missions to comets. They feel that studying comets up close will help us understand different things about our solar systems, and its objects . Studying comets in an up close fashion also helps scientists understand more about the beginning of our solar system. Countries currently sending space craft to study comets include the United States, Japan, the Soviet Union and countries in Europe. The United States conducted an incredible mission to comet with a space craft named Deep Impact whose mission, as the name suggests, was to travel to comet Tempel 1 and make a deep impact into it. 


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<P><img id ="right" src = "images/comet-mission-nasa.png" alt="NASA Comet Mission" title="NASA Comet Mission"/>
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<P>This mission required the craft to travel 268 million miles, which took 172 days. That is over 1 million miles per day! The relationship between the size of the object that crashed into the comet and the comet was like comparing a small table (impactor) and a large city (comet). An interesting fact about the Deep Impact mission is that after it released its probe to crash into Comet Tempel 1, it continued to two other missions. One finding that it made is that pure water was found to be coming out of comet Hartley 2. Other elements found coming out of the comet included carbon dioxide. Studying the chemical makeup of a comet is always a goal scientists involved in these types of missions. California Institute of Technology manages the Deep Impact mission.  
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            <p>NASA and other space agencies want to get close to comets by sending probes to study them.  They want to study the materials they are made of because they are believed to be as old as the universe.</p>
          
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